Jī-sng-hòa ke-sò͘
Jī-sng-hòa ke-sò͘ (二酸化珪素; Eng-gí: silicon dioxide), mā thang kiò-chò jī-ióng-hòa-se̍k (二氧化矽) ia̍h sī se̍k-thô͘ (矽塗),[4] hoà-ha̍k-sek sī SiO
2, sī ke-sò͘ kah sng-sò͘ hòa-ha̍p ê hun-chú hòa-ha̍p-bu̍t, khiā-sǹg-kóng sī ke-sò͘ ê sng-hòa-bu̍t. I ū chin chē khoán kiat-cheng hêng-sek, pí-lūn chio̍h-eng.
 Jī-sng-hòa ke-sò͘ ê kiàn-pún
| |
| Hō-miâ | |
|---|---|
| IUPAC hō-miâ
Silicon dioxide
| |
| Kî-tha hō-miâ
Se̍k-thô͘ (矽塗)
jī-ióng-hòa-se̍k (二氧化矽) | |
| Sek-pia̍t-hō] | |
| ECHA InfoCard | 100.028.678 |
| E number | E551 (acidity regulators, ...) |
PubChem CID
|
|
| Sèng-chit | |
| SiO2 | |
| Mole chit-liōng | 60.08 g/mol |
| Gōa-māu | thàu-bêng ia̍h-sī pe̍h-sek |
| Bi̍t-tō͘ | 2.648 (α chio̍h-eng), 2.196 (bô-tēng-hêng) g·cm−3[1] |
| Iûⁿ-tiám | 1713 |
| Hut-tiám | 2950 |
Khut-chiat-lu̍t (nD)
|
1.544 |
| Gûi-hiám | |
| NFPA 704 | |
| Bí-kok kiān-hong pī-pha̍k chè-hān (NIOSH): | |
PEL (Ē-thong-kòe)
|
TWA 20 mppcf (80 mg/m3/%SiO2) (bô-tēng-hêng)[2] |
REL (Chhui-chiàn)
|
TWA 6 mg/m3 (bô-tēng-hêng)[2] Ca TWA 0.05 mg/m3[3] |
IDLH (Chek-sî gûi-hiám)
|
3000 mg/m3 (bô-tēng-hêng)[2] Ca [25 mg/m3 (cristobalite, tridymite); 50 mg/m3 (quartz)][3] |
Tû-liáu te̍k-pia̍t chí chhut, chu-liāu sī kun-kù bu̍t-chit ê piau-chún chōng-thài (tī 25 °C [77 °F], 100 kPa). | |
| Infobox chham-chiàu | |
Tē-kiû téng ê soa-á toā-hūn sī jī-sng-hoà ke-sò͘. Po-lê ê ki-pún sêng-hūn mā sī jī-sng-hoà ke-sò͘.
Kiat-kò͘
siu-káiJī-sng-hòa ke-sò͘ ê ki-pún kiat-kò͘ sī sì-bīn-thé hun-chú kò͘-hêng, tiō-sī ke-sò͘ goân-chú tiám tiong-ng, hō͘ 4 ê sng-sò͘ goân-chú pau--khí-lâi, ta̍k-ê goân-chú chi-kan lóng sī kiōng-iú kiat-ha̍p. Chē-chē sì-bīn-thé saⁿ-thia̍p, tō hêng-sêng 3D ko͘-á khoán-sek ê kiat-kò͘.
Jī-sng-hòa ke-sò͘ àn-chiàu kiat-cheng ê hêng-thài, thang hun-chò nn̄g lūi: cheng-chit he̍k-chiá sī hui-cheng-chit.
Sèng-chit
siu-káiBu̍t-lí sèng-chit
siu-káiJī-sng-hòa ke-sò͘ bē iûⁿ tī chúi lāi-té. I ê iûⁿ-tiám, bi̍t-tō͘ téng-téng ê sèng-chit chīn-chāi i ê kiat-cheng hêng-sek.
Hòa-ha̍k sèng-chit
siu-káiHut-hòa chúi-sò͘ sng (HF) ē kā jī-sng-hòa ke-sò͘:
- SiO
2 + 6 HF → H
2SiF
6 + 2 H
2O
Só͘-í-kóng, po-lê bē-tàng té hut-hòa chúi-sò͘ sng.
Iōng-tô͘
siu-káiChham-khó bûn-hiàn
siu-kái- ↑ Haynes, William M., pian. (2011). CRC Handbook of Chemistry and Physics (92nd pán.). Boca Raton, FL: CRC Press. ISBN 1439855110.
- ↑ 2.0 2.1 2.2 "NIOSH Pocket Guide to Chemical Hazards #0552". National Institute for Occupational Safety and Health (NIOSH).
- ↑ 3.0 3.1 "NIOSH Pocket Guide to Chemical Hazards #0682". National Institute for Occupational Safety and Health (NIOSH).
- ↑ "silica". Maryknoll Eng Tâi Jī-tián. Tâi-tiong: Maryknoll Hōe Gí-giân Ho̍k-bū Tiong-sim. 1979. p. 793.
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